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Information @ a Glance

Introduction

  • Fluorite (also called fluorspar) is a mineral composed of calcium fluoride, CaF2.
  • Fluorite is a mineral with a veritable bouquet of brilliant colors.
  • Fluorite is the most popular mineral for mineral collectors in the world, second only to quartz.
  • Fluorite (Fluorspar) is an ionic solid that comprises its constituent elements (calcium and flourine) arranged in the cubic system of crystal symmetry.

Technology

  • The rapid progress that is being made in lithography and many other areas of technology owes a lot to calcium fluoride crystals.
  • L-series telephoto lenses utilize Canon's UD glass to minimize the effect of chromatic aberration, sometimes called colour fringing.
  • A single fluorite element has the corrective power of two UD glass elements, which gives these L-series lenses their spectacular performance.
  • Fluorsilicic acid is produced in large quantities as a by-product during the production of phosphoric acid for fertilizer manufacture and is used as a source of fluorine in some parts of the world.

Production Process

  • Fluorspar is mined by both underground and open-pit methods.
  • Fluorspar ores are commonly blended prior to use in order to maintain a constant feed grade to the beneficiation plant.
  • To obtain grained synthetic fluorspar calcium fluoride, slurry is calcinated in a rotary kiln at temperature 900–1100K.

Market

  • Hydrogen Flouride production is the largest market for acid - grade fluorspar, accounting for over half of world consumption.
  • The majority of fluorspar is used in the production of hydrofluoric acid, followed by use for aluminum smelting and steel manufacturing.
  • The main production of fluorspar is however, confined only to two areas: at Amba dungar in Baroda district of Gujarat and at Mando-Ki-Pal in Dungarpur district of Rajasthan.

Uses

  • Fluorite is used instead of glass in some high performance telescopes and camera lens elements.
  • It is used as a flux in iron smelting.
  • The majority of the United States’ annual consumption of fluorspar is for the production of hydrofluoric acid (HF) and aluminum fluoride (AlF3).
  • It is also used in the manufacture of uranium.
  • CaF2 is also used extensively for laser windows at UV wavelengths.

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